Hi there! My name is David. It’s a pleasure to help you today.
Do you have a laptop or a desktop PC?
Did your PC’s audio work fine before? When did the issue start happening?
I can suggest performing a clean boot of Windows to check if the Audio Endpoint Builder service works correctly, in order to rule out whether a third‑party service/software is causing the issue.
You can find how to do it at the following link:
If the Audio Endpoint Builder service runs normally in clean boot, you should enable the third‑party services one by one and test again to determine which one may be the cause of the issue.
I can also recommend trying to update the audio drivers, searching on your device manufacturer’s website. You can tell me the brand and model of your laptop or motherboard so I can help you find them.
Let me know if the shared information has been helpful. Regards.